2011 will go down in the history books as a great year for tablets mostly for Apple's iPad however, not all tablet vendors fared as well as Apple. It's not for lack of products that prevented Android tablets from taking any market share away from Apple this year. By our calculation, over 100 tablets were introduced since the iPad however, we defy even the most tech-savvy of you to name more than a few of them. What was so wrong with the competition that it failed to make any inroads in the tablet market, at least until the Amazon Kindle Fire and Barnes & Noble Nook came along?